William K. "Kendall" Nix, chairman and CEO of Comanche National Bank's parent company, will join the Spirit board of directors and will serve as vice chairman of Spirit of Texas Bank.

"This is as an excellent opportunity for Comanche to become part of a larger community bank that will enable us to offer our customers and the communities we serve a broader array of financial services while still maintaining the convenience of local decision makers across our sizable combined branch network," he said in the news release.